Home Past Events Archive Colloquium Colloquium: “Untangling the twisted magnetic fields of young stars during star formation” — Thursday, March 24, 2022 at 4 PM

Colloquium: “Untangling the twisted magnetic fields of young stars during star formation” — Thursday, March 24, 2022 at 4 PM

Dr. Alicia Aarnio
University of North Carolina Greensboro
Thursday, March 24, 2022, 4 PM
George P. Williams, Jr. Lecture Hall, (Olin 101)
This will be a virtual speaker event
To obtain the video conference link, contact wfuphys@wfu.edu


A reception will be held around the Olin Building Entrance at 3:30 PM prior to the colloquium. All interested persons are cordially invited to attend.


ABSTRACT 

 
Modern astrophysics offers a wealth of tools and methods for understanding the process of star and planet formation. Spectroscopy has presented a rich picture of stars and their circumstellar environs in the epoch of planet formation, although the lack of spatial information makes spectral line components extremely difficult to disentangle. Interferometry and direct imaging techniques have helped elucidate fine detail previously unavailable, but are generally limited to detecting disk material. An entire realm of interaction is ongoing, as revealed in time-domain spectroscopy, between the star and the disk, and facilitated by the star’s magnetic field. In this talk, I will give a whirlwind tour of how the star formation process is currently understood, and why it is so important to understand star-disk interaction if we wish to know planetary origin stories. I will discuss how stellar magnetic fields are observed, the limitations of these observations, and how we can best use what data are available to inform models. Lastly, I’ll discuss how my group is leveraging simulations to understand stars with increasingly complex magnetic fields which may not be resolvable due to flux cancelation.

Date

Mar 24 2022
Expired!

Time

4:00 pm - 5:00 pm

Location

Olin 101
Olin Physical Laboratory, Wake Forest University, Winston-Salem, NC 27109
Category

Organizer

Paul Anderson
Email
anderson@wfu.edu